$ python
Python 3.14.2 free-threading build (main, Dec 5 2025, 21:11:07) [Clang 21.1.4 ] on darwin
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>>> import cramjam
<frozen importlib._bootstrap>:491: RuntimeWarning: The global interpreter lock (GIL) has been enabled to load module 'cramjam.cramjam', which has not declared that it can run safely without the GIL. To override this behavior and keep the GIL disabled (at your own risk), run with PYTHON_GIL=0 or -Xgil=0.
free threading is generally available however this library does not support it